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Oscillon lifetime in the presence of quantum fluctuations (2014)
Journal Article
Saffin, P. M., Tognarelli, P., & Tranberg, A. (2014). Oscillon lifetime in the presence of quantum fluctuations. Journal of High Energy Physics, 2014(8), Article 125. https://doi.org/10.1007/JHEP08%282014%29125

We consider the stability of oscillons in 2+1 space-time dimensions, in the presence of quantum fluctuations. Taking the oscillon to be the inhomogeneous mean field of a self-interacting quantum scalar field, we compare its classical evolution to the... Read More about Oscillon lifetime in the presence of quantum fluctuations.

Room Temperature Electroluminescence from Mechanically Formed van der Waals III-VI Homojunctions and Heterojunctions (2014)
Journal Article
Balakrishnan, N., Kudrynskyi, Z. R., Fay, M. W., Mudd, G. W., Svatek, S. A., Makarovsky, O., …Patanè, A. (2014). Room Temperature Electroluminescence from Mechanically Formed van der Waals III-VI Homojunctions and Heterojunctions. Advanced Optical Materials, 2(11), 1064-1069. https://doi.org/10.1002/adom.201400202

Room temperature electroluminescence from semiconductor junctions is demonstrated. The junctions are fabricated by the exfoliation and direct mechanical adhesion of InSe and GaSe van der Waals layered crystals. Homojunction diodes formed from layers... Read More about Room Temperature Electroluminescence from Mechanically Formed van der Waals III-VI Homojunctions and Heterojunctions.

Realization of a single-Cooper-pair Josephson laser (2014)
Journal Article
Chen, F., Li, J., Armour, A., Brahimi, E., Stettenheim, J., Sirois, A., …Rimberg, A. (2014). Realization of a single-Cooper-pair Josephson laser. Physical Review B, 90, Article 020506. https://doi.org/10.1103/PhysRevB.90.020506

We have embedded a voltage-biased Cooper-pair transistor (CPT) in a high-Q superconducting microwave cavity. When the energy given to a tunneling Cooper pair by the voltage bias is equal to a multiple of the cavity photon frequency, the cavity is pum... Read More about Realization of a single-Cooper-pair Josephson laser.

Suite of hydrodynamical simulations for the Lyman-alpha forest with massive neutrinos (2014)
Journal Article
Rossi, G., Palanque-Delabrouille, N., Borde, A., Viel, M., Yeche, C., Bolton, J. S., …Le Goff, J.-M. (2014). Suite of hydrodynamical simulations for the Lyman-alpha forest with massive neutrinos. Astronomy and Astrophysics, 567, Article A79. https://doi.org/10.1051/0004-6361/201423507

The signature left in quasar spectra by neutral hydrogen in the Universe allows constraining the sum of the neutrino masses with a better sensitivity than laboratory experiments and may shed new light on the neutrino mass hierarchy and the absolute m... Read More about Suite of hydrodynamical simulations for the Lyman-alpha forest with massive neutrinos.

Lasing from active optomechanical resonators (2014)
Journal Article
Czerniuk, T., Brüggemann, C., Tepper, J., Brodbeck, S., Schneider, C., Kamp, M., …Bayer, M. (2014). Lasing from active optomechanical resonators. Nature Communications, 5(1), Article 4038. https://doi.org/10.1038/ncomms5038

Planar microcavities with distributed Bragg reflectors (DBRs) host, besides confined optical modes, also mechanical resonances due to stop bands in the phonon dispersion relation of the DBRs. These resonances have frequencies in the 10- to 100-GHz ra... Read More about Lasing from active optomechanical resonators.

Measurement of proton tunneling in short hydrogen bonds in single crystals of 3,5 pyridinedicarboxylic acid using nuclear magnetic resonance spectroscopy (2014)
Journal Article
Frantsuzov, I., Ford, S. J., Radosavljevic-Evans, I., Horsewill, A. J., Trommsdorff, H. P., & Johnson, M. R. (2014). Measurement of proton tunneling in short hydrogen bonds in single crystals of 3,5 pyridinedicarboxylic acid using nuclear magnetic resonance spectroscopy. Physical Review Letters, 113, https://doi.org/10.1103/PhysRevLett.113.018301

In this letter, we present NMR spin-lattice and relaxometry data for proton transfer in one of the shortest known N-H∙∙∙O hydrogen bonds in a single crystal of 3,5 pyridinedicarboxylic acid (35PDCA). It is widely believed that proton transfer by quan... Read More about Measurement of proton tunneling in short hydrogen bonds in single crystals of 3,5 pyridinedicarboxylic acid using nuclear magnetic resonance spectroscopy.

Neuropsychosocial profiles of current and future adolescent alcohol misusers (2014)
Journal Article
Whelan, R., Watts, R., Orr, C. A., Althoff, R. R., Artiges, E., Banaschewski, T., …Ziesch, V. (2014). Neuropsychosocial profiles of current and future adolescent alcohol misusers. Nature, 512(7513), 185-189. https://doi.org/10.1038/nature13402

A comprehensive account of the causes of alcohol misuse must accommodate individual differences in biology, psychology and environment, and must disentangle cause and effect. Animal models can demonstrate the effects of neurotoxic substances; however... Read More about Neuropsychosocial profiles of current and future adolescent alcohol misusers.

Kinematics and simulations of the stellar stream in the halo of the Umbrella Galaxy (2014)
Journal Article
Foster, C., Lux, H., Romanowsky, A. J., Martínez-Delgado, D., Zibetti, S., Arnold, J. A., …Strader, J. (2014). Kinematics and simulations of the stellar stream in the halo of the Umbrella Galaxy. Monthly Notices of the Royal Astronomical Society, 442(4), 3544-3564. https://doi.org/10.1093/mnras/stu1074

We study the dynamics of faint stellar substructures around the Umbrella Galaxy, NGC 4651, which hosts a dramatic system of streams and shells formed through the tidal disruption of a nucleated dwarf elliptical galaxy. We elucidate the basic characte... Read More about Kinematics and simulations of the stellar stream in the halo of the Umbrella Galaxy.

New approach for precise computation of Lyman-alpha forest power spectrum with hydrodynamical simulations (2014)
Journal Article
Borde, A., Palanque-Delabrouille, N., Rossi, G., Viel, M., Bolton, J. S., Yeche, C., …Le Goff, J.-M. (2014). New approach for precise computation of Lyman-alpha forest power spectrum with hydrodynamical simulations. Journal of Cosmology and Astroparticle Physics, 2014(July), Article 005. https://doi.org/10.1088/1475-7516/2014/07/005

Current experiments are providing measurements of the flux power spectrum from the Lyman-α forests observed in quasar spectra with unprecedented accuracy. Their interpretation in terms of cosmological constraints requires specific simulations of at l... Read More about New approach for precise computation of Lyman-alpha forest power spectrum with hydrodynamical simulations.

Screening of scalar fields in Dirac-Born-Infeld theory (2014)
Journal Article
Burrage, C., & Khoury, J. (2014). Screening of scalar fields in Dirac-Born-Infeld theory. Physical Review D, D90(2), Article 024001. https://doi.org/10.1103/PhysRevD.90.024001

We study a new screening mechanism which is present in Dirac-Born-Infeld (DBI)-like theories. A scalar field with a DBI-like Lagrangian is minimally coupled to matter. In the vicinity of sufficiently dense sources, nonlinearities in the scalar domina... Read More about Screening of scalar fields in Dirac-Born-Infeld theory.

Cosmological effects of scalar-photon couplings: dark energy and varying-α models (2014)
Journal Article
Avgoustidis, A., Martins, C., Monteiro, A., Vielzeuf, P., & Luzzi, G. (2014). Cosmological effects of scalar-photon couplings: dark energy and varying-α models. Journal of Cosmology and Astroparticle Physics, 2014(6), https://doi.org/10.1088/1475-7516/2014/06/062

We study cosmological models involving scalar fields coupled to radiation and discuss their effect on the redshift evolution of the cosmic microwave background temperature, focusing on links with varying fundamental constants and dynamical dark energ... Read More about Cosmological effects of scalar-photon couplings: dark energy and varying-α models.

Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing (2014)
Journal Article
Gonzalez-Nuevo, J., Lapi, A., Negrello, M., Danese, L., De Zotti, G., Amber, S., …Xia, J.-Q. (2014). Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing. Monthly Notices of the Royal Astronomical Society, 442(3), https://doi.org/10.1093/mnras/stu1041

We report a highly significant (>10σ) spatial correlation between galaxies with S350 μm ≥ 30 mJy detected in the equatorial fields of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) with estimated redshifts ≳ 1.5, and Sloan Digital S... Read More about Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing.

Bimolecular porous supramolecular networks deposited from solution on layered materials: graphite, boron nitride and molybdenum disulphide (2014)
Journal Article
Korolkov, V. V., Svatek, S. A., Allen, S., Roberts, C. J., Tendler, S. J., Taniguchi, T., …Beton, P. H. (2014). Bimolecular porous supramolecular networks deposited from solution on layered materials: graphite, boron nitride and molybdenum disulphide. Chemical Communications, 50(64), https://doi.org/10.1039/C4CC03720K

A two-dimensional porous network formed from perylene tetracarboxylic diimide (PTCDI) and melamine may be deposited from solution on the surfaces of highly oriented pyrolytic graphite (HOPG), hexagonal boron nitride (hBN) and molybdenum disulphide (... Read More about Bimolecular porous supramolecular networks deposited from solution on layered materials: graphite, boron nitride and molybdenum disulphide.

Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate (2014)
Journal Article
Gibson, A. J., Temperton, R. H., Handrup, K., Weston, M., Mayor, L. C., & O'Shea, J. N. (2014). Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate. Journal of Chemical Physics, 140(234708), Article 234708. https://doi.org/10.1063/1.4882867

The interaction of the dye molecule N3 (cis-bis(isothiocyanato)bis(2,2-bipyridyl-4,4′-dicarbo-xylato)-ruthenium(II)) with the ultra-thin oxide layer on a AlNi(110) substrate, has been studied using synchrotron radiation based photoelectron spectrosco... Read More about Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate.

Herschel-ATLAS/GAMA: how does the far-IR luminosity function depend on galaxy group properties? (2014)
Journal Article
Guo, Q., Lacey, C., Norberg, P., Cole, S., Baugh, C., Frenk, C., …Robotham, A. (2014). Herschel-ATLAS/GAMA: how does the far-IR luminosity function depend on galaxy group properties?. Monthly Notices of the Royal Astronomical Society, 442(3), 2253-2270. https://doi.org/10.1093/mnras/stu962

We use the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) Phase I data to study the conditional luminosity function of far-IR (250 μm) selected galaxies in optically selected galaxy groups from the Galaxy And Mass Assembly (GAMA) spectr... Read More about Herschel-ATLAS/GAMA: how does the far-IR luminosity function depend on galaxy group properties?.

Electromagnetically induced transparency in an entangled medium (2014)
Journal Article
Li, W., Viscor, D., Hofferberth, S., & Lesanovsky, I. (2014). Electromagnetically induced transparency in an entangled medium. Physical Review Letters, 112(24), https://doi.org/10.1103/PhysRevLett.112.243601

We theoretically investigate light propagation and electromagnetically induced transparency (EIT) in a quasi one-dimensional gas in which atoms interact strongly via exchange interactions. We focus on the case in which the gas is initially prepared i... Read More about Electromagnetically induced transparency in an entangled medium.

Functional quantitative susceptibility mapping (fQSM) (2014)
Journal Article
Balla, D. Z., Sánchez-Panchuelo, R.-M., Wharton, S. J., Hagberg, G. E., Scheffler, K., Francis, S. T., & Bowtell, R. (2014). Functional quantitative susceptibility mapping (fQSM). NeuroImage, 100, 112-124. https://doi.org/10.1016/j.neuroimage.2014.06.011

Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) is a powerful technique, typically based on the statistical analysis of the magnitude component of the complex time-series. Here, we additionally interrogated the p... Read More about Functional quantitative susceptibility mapping (fQSM).